^
Don't worry, from my observation the DPDR will go away. I'm 90-95% confident that it's from the MDMA, because it's pretty rare condition, but not for MDMA users. Tinnitus you should just sleep on ambient sounds at night if it bugs you, the OCD is normal for being in this kind of situation, the anxiety you have to embrace and accept completely, so you cut the vicious circle. For the insomnia, you should try melatonin with b6 and build a sleeping routine. Like at 8:00 lights are off, no screens, just a book with ambient light and sound .etc... After few months your brain will recognize the patterns and will relax itself.
You should be strong. Don't be afraid to ask for help and share with the most close people in your life. But seriously, there's soo many people who recovered completely and so many who has shred the symptoms up to 90%.